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  Mains monitoring relay  (38,717 offers of 6,235,074 product items)

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Siemens Current Monitoring Relay, 3 Phase, SPDT / 2550844 (1 offer) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = SPDT Voltage Sensitivity = Overvoltage, Undervoltage
Siemens
3RR2441-2AA40
£ 226.393*
per piece
 
 piece
Siemens 3RF2 Series Solid State Relay, 10.5 A Load, DIN Rail Mount, 460 V ac Load, 24 V dc Control / 5187528 (1 offer) 
3RF23 Series. Complete unit comprising solid state relay and optimised heat sink IP20 rating Optimised heat transfer by DCB technology Efficient thyristors with high reverse voltage Screw connectio...
Siemens
3RF2310-1BA04
£ 65.14*
per piece
 
 piece
Siemens 3RF34 Series Solid State Relay, 3.8 A Load, DIN Rail Mount, 480 V ac Load, 30 V dc Control / 7586918 (1 offer) 
3RF23 Series. Complete unit comprising solid state relay and optimised heat sink IP20 rating Optimised heat transfer by DCB technology Efficient thyristors with high reverse voltage Screw connectio...
Siemens
3RF3403-1BD04
£ 194.531*
per piece
 
 piece
SICK Background Suppression Photoelectric Sensor, Block Sensor, 20 mm → 950 mm Detection Range / 2103969 (3 offers) 
OverviewAt a glanceLong sensing ranges: 1,200 mm with background suppression 15 m on PL80A reflector PinPoint LED with bright and precise light spot Small housing design 10 … 30 VDC or 24 … 240 VAC...
Sick
1064694
£ 129.661*
per piece
 
 piece
Siemens 3RF2 Series Solid State Relay, 10.5 A Load, Screw Fitting, 230 V Load / 2104394 (1 offer) 
The Siemens solid-state contactor device are non-wearing and silent and are therefore ideal for noise-sensitive areas (offices, hospitals). They are also extremely reliable at high switching freque...
Siemens
3RF2310-2AA02
£ 62.602*
per piece
 
 piece
Siemens 3RP20 Series DIN Rail Mount Timer Relay, 24V ac/dc, 1-Contact, 0.05 s → 100h, 1-Function, SPDT / 1249401 (1 offer) 
Siemens SIRIUS 3RP20- On-Delay Timer Relay. SIRIUS 3RP20 series solid-state time delay relays are used in control, starting, and protective circuits for all switching operations involving time dela...
Siemens
3RP2025-2AP30
£ 76.799*
per piece
 
 piece
SICK Background Suppression Photoelectric Sensor, Block Sensor, 20 mm → 950 mm Detection Range / 2103973 (1 offer) 
OverviewAt a glanceLong sensing ranges: 1,200 mm with background suppression 15 m on PL80A reflector PinPoint LED with bright and precise light spot Small housing design 10 … 30 VDC or 24 … 240 VAC...
Sick
1064686
£ 194.786*
per piece
 
 piece
Siemens 5TT4217-6 circuit breaker (1 offer)
Siemens
5TT4217-6
£ 64.981*
per piece
 
 piece
Siemens 3RF2 Series Solid State Relay, 10.5 A Load, Screw Fitting, 460 V Load / 2164023 (2 offers) 
The Siemens solid-state contactor device are non-wearing and silent and are therefore ideal for noise-sensitive areas (offices, hospitals). They are also extremely reliable at high switching freque...
Siemens
3RF2310-1AA14
£ 56.20*
per piece
 
 piece
Siemens 3RP25 Series DIN Rail Mount Timer Relay, 12 → 240V ac/dc, 1-Contact, 0.05 s → 100h, 1-Function, / 8316031 (4 offers) 
Supply Voltage = 12 → 240V ac/dc Mounting Type = DIN Rail Mode of Operation = ON Delay Time Range = 0.05 s → 100h Number of Contacts = 1 Number of Timer Functions = Single Contact Configuration = S...
Siemens
3RP2525-1AW30
£ 64.28*
per piece
 
 piece
SICK Background Suppression Photoelectric Sensor, Rectangular Sensor, 3 m Detection Range / 2859546 (1 offer) 
Sensor Style = Rectangular Detection Type = Background Suppression Detection Range = 3 m Output Type = Relay Electrical Connection = M12 Connector Maximum AC Voltage = 253V Maximum DC Voltage = 253...
Sick
1119846
£ 207.736*
per piece
 
 piece
Siemens DOL Starter, DOL, 2.2 kW, 400 V ac, 3 Phase, IP54 / 6656264 (1 offer) 
Reverse Starters with Housing. Motor reverse starter in housing Easy assembly thanks to pre-wiring Short circuit, motor overload and device protection Ready for connection, no additional overload r...
Siemens
3RK4353-3LR58-1BA0
£ 411.968*
per piece
 
 piece
Siemens 3RF2 Series Solid State Relay, 20 A Load, DIN Rail Mount, 230 V Load / 2113665 (1 offer) 
The Siemens SIRIUS 3RF2 series is a solid-state contactor single phase for switching resistive/inductive loads. It has operating temperature of 40 °C. The type of electrical main current circuit an...
Siemens
3RF2320-1DA02
£ 79.707*
per piece
 
 piece
Siemens 3RP25 Series DIN Rail Mount Timer Relay, 12 → 240V ac/dc, 3-Contact, 1 → 20s, 1-Function, 3PST / 1249417 (2 offers) 
Siemens SIRIUS 3RP25 – Star Delta Timer Relay. SIRIUS 3RP25 series time relays are used in control, starting, and protective circuits for all switching operations involving time delays. Their fully...
Siemens
3RP2560-2SW30
£ 96.41*
per piece
 
 piece
SICK Energetic Photoelectric Sensor, Block Sensor, 20 mm → 2 m Detection Range / 2123171 (1 offer) 
OverviewAt a glanceLong sensing ranges: 1,200 mm with background suppression 15 m on PL80A reflector PinPoint LED with bright and precise light spot Small housing design 10 … 30 VDC or 24 … 240 VAC...
Sick
1065875
£ 152.564*
per piece
 
 piece
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